第二是指示（presentation），第三是比较和抽象 （comparison and abstraction），第四是概括（generalization），第五是应用（application）。
基于1个网页-相关网页
本文的第 1 部分比较抽象，因为这里的重点在于关系和业务敏捷性战略目标的表述，它们在本质上是动态的。
This part of the article can be seen to be more abstract, in that its focus is the relationships and representing business agility goals, which by nature are dynamic.
例如，某些情况下 VM 也许能够完全删除锁机制，这使得我们难以抽象地比较 volatile 和 synchronized 的开销。
For example, the VM may be able to remove locking entirely in some situations, which makes it hard to talk about the relative cost of volatile vs. synchronized in the abstract.
景观石里的雪浪石，其色彩和品种都比较好，可以看做是抽象的雕塑，人们可以从各个不同的角度去欣赏这些景观石。
Landscape stone in Xuelang stone its color and variety, are good, can be seen as the abstract sculpture, people can enjoy the landscape stone from different angles.
应用推荐